Combines scraping and brushing machine



Se t. 14, 1926.; v 1,599,713

S. PERLMAN COMBINED SCRAPING 4m) BRUSHING MACHINE .Filed Oct. 16. 1924 0w ZBe 77/zQ7Z/ JW arzfo 7" Y Patented Sept. 14, 1926.

' UNITED STATES SAMUEL PERLMAN, OF CHICAGO, ILLINOIS.

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Application encounter-16,1924. Serial No. 743,901.

This invention is designed primarily for use in the scraping and brushin of butchers blocks althou h it may be used 'or the cleaning of bakers tables or for other for which a combined scraper and rush is deemed desirable.

The object of the invention is to so mount the scraping and brushing wheels'that the weight of the device as a whole will aid in holding the scraper and brush in firm and efi'ective contact with the block or other surface to which the machine is applied, and at the same time permit a read manipulation of the same to increase or diminish the effective contact ofthe rotating elements at will and to permit the device to from place to place. v

Further objects and details will appear from the detailed description and accompanying drawings.

In the drawings Figure 1 is a sectional elevation of the machine as a whole showing the motor and retating elements in elevation; and

Fig. 2 is a sectional view taken 'on line 22 of Fig. 1, looking in the direction of the arrows.

I The device as a whole comprises a casing having side walls 10, a ward top wall 12, and a rear top wall 13. The top wall is down curved at its forward end 14 and the front and rear sections of the top wall are hinged'by hinges 15 with the upper edge of a vertical partition wall 16' which co-acts with a floor. section 17 in providing a chamber for the housing of a motor 18. It will be noted that the floor section 17 is elevated above the lower edges of the side walls to afiord a space or passageway 19 beneath the floor section for the expulsion of dust and scrapings.

Near the rear end of the casing on each side is mounted a roller 20 which serves to elevate the casing slightly above the base level at the rear end. i

The motor 18 receives current through a 1 cable 21 which extends through a handle 22 centrally disposed in the rear wall 11. In front of the partition wall 16-is located a brush drum 123 provided with bristles 25 and in the extreme front end of the de vice is located a scraiper drum 25 preferabiy provided with sti steel spines 26. It m urposes 28 will cause the rotation be moved 7 1t 1s advanced over the surface rear wall 11, a for-.-

vbe taken out and another substitute tor the scraper and be noted that the weight of the .forward end of the machine is supported upon the scraper spines which rest directly against the table. or ment.

which carries a sprocket wheel 28 engaging a sprocket chain 29 which in turn is carried around an outer sprocket 30 on the end of a brush stub shaft 31 which also carries an innersprocket 32 co-operating with-a sprocket chain 33 carried around a sprocket 34 on a scraper stubshaft 35. he arrangement is such that the rotation ofthe motor shaft other surface under treat-- unison of the The motor is provided with a shaft 27 I scraper drum and brush drum in a clockwise direction which will cause the scrapings and dust to be swept under the machine as under treatment.

It is desirable to removal and replacement of the scraper and b'rush.drums, and the shaft housings are designed with that end in view. The shaft 31 is aligned with a like shaft 36 at the opposite end of the drum 23, and each shaft is provided with a fi 37 which when entered into the end of t e drum will rigidly mount the drumon .the shaft section. Each shaft section is entered through a journal. bushing 38 which is screw threaded to receive a cap 39 which also serves as a thrust bearing. By unscrewing the caps,

the shaft sections may be drawn out sufii ciently to release the drum which ma then if so desired. The shaft sections 35 and mountings therefor are identical with those just described,'so that further description thereof is deemed unnecessa of removably mounting the drums might be employed, however, without departing from the spirit of they invention.

In use, the current cable is attached to a suitable source of. current and the machine is then rested upon the surface of the butchers block, table or .the like undergo ng treatment. Upon starting the mobrush will rotate in unison and the pressure to be ap these rotating elements can be easily varied by tilting the device more or less upon the rear rollers-20' which provide fulcrum points for this manipulation. By tilting down on the forward end of the machine a heavy degree of pressure he imparted to the scraper spmes,- and a tilt will,

provide for the easy plied on Other methods the vigor and the device being substantia 1y closed,

save at the forward end, can be moved over the surface under treatment without occasioning dust or dispersal of scrapings which are rearwardly passed to the rear end and ejected from the machine as it advances. The method of hinging the top sections permits of ready access to the interior as occasion may require.

I claim Ina machine of the class described, the

combination of a casing of horizontally elongated generally rectangular formation, comprising side walls, a rear wall and a ,top wall, the lower edges of the side walls being straight from the rear to a point adjacent to the front, a handle rigid with the casing, a motor within the rear portion of the casing, a rotary scraper journalled near the forward end of the casing and provided with scraping elements extending below the lower ed es of the casing, a rotary brush journalled between the motor and the scraper, provided with brushing elements 30 projecting below the lower edgeof the easing, and transmission elements leading from the motor to the scraper and brush respectively, substantially as described.

SAMUEL PERLMAN. 

